Study of hyperon-nucleon interaction with scintillating fiber detector

为了研究超子-核子相互作用，即寻找H-双重子和超子-核子散射实验，研制了闪烁光纤探测器作为可视化径迹探测器。对该探测器的位置分辨率、速率能力、粒子识别等性能进行了研究，满足了首次实验(KEK-E224)的要求。本实验成功地进行了实验，并利用新开发的分析系统对数据进行了分析。得到了(K-，K+)反应产生H的最严格的截面上限。首次研究了核的(K-，K+)反应和X i^-C原子的反应，提供了X i原子势的信息和涉及两个单位星性的反应机理，并用这一新技术进行了Sigma+p散射实验，首次获得了截面.该方法现已建立用于研究超子-核子散射实验。

The scintillating fiber detector has been developed to use it as a visual track detector for the study of hyperon-nucleon interaction, namely the search for the H dibaryon and hyperon-nucleon scattering experiment.The performance of the detector such as the position resolution, rate capability, particle identification have been studied and fulfillled the requirement for the first experiment (KEK-E224) with this type of the detector. This experiment was carried out sucessfully and the data were analyzed with newly developed analysis system. The most severe upper limit of the production cross section for the H by (K-, K+) reaction was obtained. The (K-, K+) reaction from nuclei and the deacy from XI^--C atoms were studied for the first time and provided the information on XI-nucleus potential and the reaction mechanism involving two units of starngeness.The SIGMA+p scattering experiment was also performed and obtained the cross section for the first time with this new technique. The method is now established to study the hyperon-nucleon scattering experiments.